A duality of contrasting forces in a single entity, Equinox unleashes wrath like the onset of daybreak, or draws life to a close like dusk's approach. Shifting between two forms allows her to bolster Tenno strength in light or provide recuperative respite in darkness. Equinox dawned in Update 17.0.

Equinox requires a unique method to craft: Tenno must forge both the Equinox Night Aspect and Equinox Day Aspect in the Foundry – each of which requires its respective Neuroptics, Chassis, and Systems – before the Warframe itself can be built. Component and Aspect blueprints are acquired by defeating Tyl Regor at Titania, Uranus; the main blueprint can be bought in the market.

The drop chances for each component is 12.91% and the drop chances for each Aspect blueprint is 11.28%, with an expected 21-22 runs to obtain each component at least once and 159±40 runs to be nearly guaranteed each component at least once.

Equinox's Energy Color determines which form she begins with during a mission — light-colored hues has her start in her Day Form, and dark-colored hues has her start in her Night Form. This does not affect her overall gameplay otherwise.

Equinox currently requires the most components to build, requiring four blueprints each for the Night and Day Aspects, and one for the Warframe itself. This totals to 9 components.

Equinox is one of the most expensive Warframes in credits to build, with the total cost amounting to 225,000‍ 225,000. This includes the cost to buy the Equinox blueprint from the Market along with the cost in constructing a Forma.

Equinox is currently the only Warframe that requires a Forma to build.

Rushing through all the components requires 300 Platinum. If a player desires to rush all of the components, including the main blueprint, it may be wiser to outright buy the Warframe from the market for 325 Platinum, which saves 20 Platinum for the pre-installed Orokin Reactor and the Warframe slot.

Equinox is currently the longest to build of all the Warframes released. Each component to the Day and Night Aspects taking 12 hours, the Aspects themselves both taking 72 hours to craft, the Forma required to build the Warframe taking 24 hours, along with the Warframe itself also taking 72 hours.

Despite the androgynous nature of Equinox's design, former Community Editorial Coordinator Adam Ma has confirmed that both day and night forms are female.[1]

Equinox appears as her composite form (both day and night) in any shared space, such as in the player's Landing Craft, in Relays, or while using Archwings. This form can also be seen briefly when shifting between forms with Metamorphosis.

When customizing her appearance, a button in the bottom right of the screen labelled "Metamorphosis" allows players to switch between Equinox's three forms. However, leaving the Appearance menu reverts Equinox back to her Composite form.

Equinox refers to a biannual event where daytime and night are of roughly equal duration.

During her development, Equinox's separate forms were originally referred to as Anima and Animus, both of which are concepts in Jungian Psychology. They are respectively described as the feminine and masculine aspects of a person's psyche. Equinox is still referred to as 'AnimaAnimus' internally in the game files.

Both are additive with Equinox's current armor and shield capacity (e.g., a level-30 Equinox with a maxed Redirection, Steel Fiber, and Intensify will have 300 + 100 × 4.4 + 150 × 1.3 = 935 shields and 100 × 2.1 + 250 × 1.3 = 535 armor within the first second of a rank-3 Metamorphosis after the initial transformation is complete).

On missions with ice hazards, the shield decay rate is halved. When the ability ends, Equinox will be left with overshields equal to 50% of the listed maximum shield bonuses.

The damage buff is additive with the base damage of weapons (e.g., with a maxed Heavy Caliber and Intensify, a weapon that inflicts 250 base damage will be increased to 250 × (1 + 1.65 + 0.25 × 1.3) = 743.75 within the first second of a rank-3 Metamorphosis after the initial transformation is complete).

The movement speed buff is multiplicative with other movement speed modifiers (e.g., with a maxed Rush and Intensify, a rank-3 Metamorphosis will increase Equinox's sprint speed to (1 × 1.3) × (1 + 0.15 × 1.3) = 1.5535 within the first second after the initial transformation is complete).

Switching between forms removes any bonuses granted by the previous form. Only a single set of Metamorphosis buffs can be active at any given time.

While switching, Equinox cannot cast any abilities but can perform all other actions such as moving and using weapons.

Pacify & Provoke and Mend & Maim are deactivated upon casting Metamorphosis. However, casting Metamorphosis in Day Form while Provoke is active will increase the armor and shield bonuses for Equinox's Night Form.

During the transformation, Equinox momentarily becomes whole with her night and day features merged together, then separates into the opposite form.

Cannot recover from stagger, knockdown, and ragdoll effects until they wake.

Enemies retain their current alertness state on cast (i.e., unaware enemies put to sleep will remain unaware for this duration, while alerted enemies will remain alert). Enemies under the effects of Rest will always be susceptible to melee finishers and stealth damage multipliers; however, affected enemies that were previously alerted will not grant Stealth Kill Affinity Bonuses.

Energy threads will visually strike enemies in the targeted area to indicate affected targets.

The damage vulnerability adds multiplicatively to the original damage the affected enemy would receive (e.g., with a maxed Intensify, an enemy that would receive 250 damage will be dealt 250 × (1 + 0.5 × 1.3) = 412.5 damage under the effects of a rank-3 Rage).

Casting Rage while Provoke is active will increase the percentage of damage vulnerability.

Calm & Frenzy is a Warframe Augment Mod for Equinox that aids her in spreading the effects of Rest & Rage. Enemies slain while affected by Rest & Rage spreads it to others within close proximity, for the remaining duration.

It is possible to activate stealth kill affinity bonuses on enemies using low-damage automatic weapons (ex. Grakata) by casting Rest on an unaware enemy. Affected enemies can then be shot repeatedly and then killed without changing their unaware state, allowing for the affinity multiplier to activate.

When combined with awareness of nearby enemies and sufficient duration on the ability, Rest can be paired with Covert Lethality to great effect. Casting the ability on otherwise-hard-to-kill enemies -- single targets, or small-to-medium-sized groups -- opens them up to stealth attacks and finisher moves. The mod itself does guaranteed "Lethal Damage" on a successful finisher animation, which means if you perform the animation, the enemy dies, guaranteed.

Note that this combination is only effective if the targeted enemies are actually vulnerable to stealth finishers. Some enemies, (such as certain infested units or robotic enemies), are either frequently troublesome to target with a finisher move (due to hitbox detection issues) -- such as the Infested Ancients -- or they are completely immune to finisher moves at the time of this writing (U18.1.4), because they do not trigger the finisher prompts.

Except for the enemies immune to stealth finishers listed above, this combination works against all enemies, regardless of their alertness level prior to becoming a target of Rest.

Note that mods which affect melee attack-speed will also affect the speed of Finisher animations, so using attack-speed mods in conjunction with Covert Lethality -- rather than just using damage mods -- is advised. (If your strategy is to consistently kill with stealth finishers, it doesn't really matter how much damage your normal attacks would otherwise do.)

Maximization

Maximization is a form of specialization: mods may be blended to result in values that vary between the top-end limits listed here. Click any maximized link to learn how to build it.

Equinox emits a crippling or empowering aura with a radius of 10 / 12 / 14 / 16 meters. Pacify & Provoke will remain active indefinitely until deactivated by casting Metamorphosis, by running out of energy, or by pressing the ability key again (default 3 ).

Equinox utilizes different versions of the ability depending on her current form:

Night form

Night Equinox emits a crippling aura that affects all enemies within range, reducing their damage up to 20% / 33% / 43% / 50% the closer they are to Equinox. While Pacify is active, 1.5 / 1.25 / 1 / 0.5 energy is drained per second for each enemy within the aura.

The damage reduction falls-off with distance.

The aura is itself divided into 4 subsequent "rings", each with 1/4 of the total radius of the ability.

The inner most ring grants the listed damage reduction, while the outermost aura grants (where the damage reduction reaches its smallest value) grants half of that value.

Unlike Pacify, the Ability Strength bonus does not fall-off with distance

Ability Strength bonus is affected by Ability Strength and cannot exceed 50% unless Peaceful Provocation is equipped. Different instances of Provoke auras do not stack, only the strongest bonus will be applied.

Provoke, after being affected by equipped Ability Strength mods, stacks additively with Ability Strength bonuses when applied to other abilities (e.g., with a maxed Intensify, Equinox's abilities will gain 0.3 + 0.2 × 1.3 = 56% Ability Strength when cast while a rank-3 Provoke is active).

In order to acquire the Ability Strength bonus from Provoke, allies only have to cast their abilities while inside the aura.

Peaceful Provocation is a Warframe Augment Mod for Equinox that increases the effectiveness of Pacify & Provoke. Pacify converts damage done to Equinox and her allies into an aura that slows enemies by up to 40%. Provoke converts damage done to enemies within the aura into up to 15% bonus Ability Strength.

Mend & Maim drain 3.5 energy per second while active. Mend & Maim will end when Equinox's energy is depleted, Equinox is incapacitated, Mend & Maim is deactivated by casting Metamorphosis, or by pressing the ability key again (default 4 ).

Equinox utilizes different versions of the ability depending on her current form:

Night form

Night Equinox emits a regenerative aura that grants ? / ? / ? / 25Shield per enemy killed within range to Equinox and her allies inside the aura. Mend accumulates 50% / 55% / 60% / 75% of the maximum shields and health of each enemy killed within the aura. Upon deactivating Mend, all stored hitpoints are evenly distributed to the shields and health of Equinox and her allies within range.

Shield per kill is affected by Ability Strength, while hitpoint conversion percentage is not.

The total amount of accumulated hitpoints is visible under Mend's icon beside Equinox's shield and health indicators.

Hitpoints restored per ally is calculated with the following expression: HP Restored per Ally = Total Accumulated HP ÷ (Equinox + Number of Allies).

When Equinox and her allies are healed, health restoration is prioritized over shield restoration (i.e., Mend will fully restore health before it can fully restore shields). This becomes apparent should there be an insufficient amount of stored hitpoints to completely heal Equinox and her allies within range when Mend is deactivated.

Allies are only healed up to their maximum shields and health; therefore, any excess accumulated hitpoints are effectively lost.

Day Equinox emits a lacerating aura that deals 75 / 100 / 125 / 150Slash damage with a 100% status chance to all enemies within range. Maim accumulates 50% / 55% / 60% / 75% of the maximum shields and health of each enemy killed within the aura as Slash damage. Upon deactivating Maim, all stored damage is released in a violent burst that affects all enemies within range.

Aura damage is affected by Ability Strength, while the damage conversion percentage is not.

Slash status effect causes a Bleed DoT on the target that inflicts 35% of Maim's base damage per tick for a total of 7 ticks over 6 seconds. The Bleed damage bypasses armor and shields.

Enemies damaged by the aura are temporarily stunned.

The aura damage, proc, and stun will only apply once to each individual enemy.

Equinox is a versatile support frame with a wide variety of uses. Her Night form is based around buffing her teammates and protecting them, while her Day form is geared towards direct offensives against the enemy. Her large energy pool allows her to maintain her powers in protracted engagements.

Mend can easily acquire sufficient amount of charge to heal any allies and recover shields.

Mend & Malm will only absorb allies' damage input/ dmg on enemy health if a warframe ability is involved.

When releasing Mend all the charge is evenly distributed to all allies in range, so be sure to have enough charge and for your desired target to be within the aura range.

Maim when de-activated releases all of the charge as Slash damage, keep in mind the faction you are facing, as heavily armored enemies, such as the strongest of the Grineer troops, are resistant to slash damage. Maim is very effective during infested missions as a crowd control, the constant slash damage which most of the infested are vulnerable to makes this ability useful for missions like infested survival.